JPS57197007A - Apparatus for treating sludge issued from water tank for purifying waste water - Google Patents

Apparatus for treating sludge issued from water tank for purifying waste water

Info

Publication number
JPS57197007A
JPS57197007A JP8739182A JP8739182A JPS57197007A JP S57197007 A JPS57197007 A JP S57197007A JP 8739182 A JP8739182 A JP 8739182A JP 8739182 A JP8739182 A JP 8739182A JP S57197007 A JPS57197007 A JP S57197007A
Authority
JP
Japan
Prior art keywords
purifying waste
treating sludge
water tank
waste water
thickener
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP8739182A
Other languages
Japanese (ja)
Other versions
JPH0239284B2 (en
Inventor
Jiyamone Berunaru
Riguaru Aran
Pieeru Buushie Jiyan
Deyuku Jiyan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ru Eeru Rikuitsudo SA Puuru Ru Echiyudo E Ru Ekusupuruwateshiyon De Purosede Jieorujie Kuroodo
Air Liquide SA
Original Assignee
Ru Eeru Rikuitsudo SA Puuru Ru Echiyudo E Ru Ekusupuruwateshiyon De Purosede Jieorujie Kuroodo
Air Liquide SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ru Eeru Rikuitsudo SA Puuru Ru Echiyudo E Ru Ekusupuruwateshiyon De Purosede Jieorujie Kuroodo, Air Liquide SA filed Critical Ru Eeru Rikuitsudo SA Puuru Ru Echiyudo E Ru Ekusupuruwateshiyon De Purosede Jieorujie Kuroodo
Publication of JPS57197007A publication Critical patent/JPS57197007A/en
Publication of JPH0239284B2 publication Critical patent/JPH0239284B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1278—Provisions for mixing or aeration of the mixed liquor
    • C02F3/1284—Mixing devices
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1205—Particular type of activated sludge processes
    • C02F3/1221—Particular type of activated sludge processes comprising treatment of the recirculated sludge
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/26—Activated sludge processes using pure oxygen or oxygen-rich gas
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Abstract

In a sludge thickener, supernatant fluid is drawn off via peripheral ducts and oxygenated at a suitable location. The supernatant fluid is thereafter reintroduced into the thickener via diffusers distributed transversely of the thickener and intermediate the peripheral ducts. The generation of nauseating smells is thereby prevented, and an advantageous increase of the concentration of the sludges is attained.
JP8739182A 1981-05-25 1982-05-25 Apparatus for treating sludge issued from water tank for purifying waste water Granted JPS57197007A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8110315A FR2506287A1 (en) 1981-05-25 1981-05-25 PROCESS AND PLANT FOR TREATING SLUDGE FROM WASTEWATER TREATMENT

Publications (2)

Publication Number Publication Date
JPS57197007A true JPS57197007A (en) 1982-12-03
JPH0239284B2 JPH0239284B2 (en) 1990-09-05

Family

ID=9258834

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8739182A Granted JPS57197007A (en) 1981-05-25 1982-05-25 Apparatus for treating sludge issued from water tank for purifying waste water

Country Status (10)

Country Link
US (1) US4711721A (en)
EP (1) EP0068916B1 (en)
JP (1) JPS57197007A (en)
AT (1) ATE11031T1 (en)
AU (1) AU549674B2 (en)
CA (1) CA1188829A (en)
DE (1) DE3261754D1 (en)
ES (1) ES8303255A1 (en)
FR (1) FR2506287A1 (en)
ZA (1) ZA813258B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008049321A (en) * 2006-08-28 2008-03-06 Sumitomo Heavy Industries Environment Co Ltd Gravity concentration tank

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4787323A (en) * 1987-08-12 1988-11-29 Atlantic Richfield Company Treating sludges and soil materials contaminated with hydrocarbons
US4940545A (en) * 1989-03-29 1990-07-10 Baker Hughes, Inc. Aerobic waste sludge digester-thickener orbital system and method
AU687759B2 (en) * 1993-09-16 1998-03-05 Harold J. Beard Mixed liquor wasting system and method
US5587081A (en) * 1994-04-26 1996-12-24 Jet-Tech, Inc. Thermophilic aerobic waste treatment process

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1385701A (en) * 1919-03-10 1921-07-26 Louis D Mills Process of recovering valuable solution from mixtures
US2069989A (en) * 1935-02-19 1937-02-09 Henry F Adams Operating thickener
US4163712A (en) * 1973-01-08 1979-08-07 Boc Limited Treatment of liquid
US4173532A (en) * 1974-03-07 1979-11-06 Entenmann's, Inc. Method for treating plant effluent
GB1497105A (en) * 1975-10-04 1978-01-05 Speece R Transfer of a compressible fluid to a relatively incompressible fluent material
GB1593375A (en) * 1976-08-24 1981-07-15 Boc Ltd Treatment of aqueous waste material by oxygenation
US4082671A (en) * 1976-09-30 1978-04-04 Envirotech Corporation Sludge thickening apparatus
FR2441586A1 (en) * 1978-11-20 1980-06-13 Air Liquide METHOD AND PLANT FOR THE TREATMENT OF SEPTIC PIT SLUDGE

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008049321A (en) * 2006-08-28 2008-03-06 Sumitomo Heavy Industries Environment Co Ltd Gravity concentration tank
JP4593537B2 (en) * 2006-08-28 2010-12-08 住友重機械エンバイロメント株式会社 Gravity concentration tank

Also Published As

Publication number Publication date
ES512398A0 (en) 1983-02-01
FR2506287B1 (en) 1985-01-18
ZA813258B (en) 1983-03-30
DE3261754D1 (en) 1985-02-14
US4711721A (en) 1987-12-08
AU549674B2 (en) 1986-02-06
EP0068916A1 (en) 1983-01-05
CA1188829A (en) 1985-06-11
JPH0239284B2 (en) 1990-09-05
EP0068916B1 (en) 1985-01-02
ES8303255A1 (en) 1983-02-01
FR2506287A1 (en) 1982-11-26
AU8361982A (en) 1982-12-02
ATE11031T1 (en) 1985-01-15

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